A Novel Mechanism of Pair Creation in Pulsar Magnetospheres
| Autor: | George Machabeli, N. Chkheidze, Zaza Osmanov |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
High Energy Astrophysical Phenomena (astro-ph.HE)
Physics Number density Field (physics) Astrophysics::High Energy Astrophysical Phenomena Elementary particle physics FOS: Physical sciences General Physics and Astronomy Magnetosphere QC793-793.5 Rotation pair creation Pair production Pulsar Orders of magnitude (time) instabilities pulsars: general Schwinger limit Quantum electrodynamics Astrophysics - High Energy Astrophysical Phenomena acceleration of particles |
| Zdroj: | Universe, Vol 7, Iss 331, p 331 (2021) |
| ISSN: | 2218-1997 |
| Popis: | In this paper we study the possibility of efficient pair production in a pulsar's magnetosphere. It has been shown that by means of the relativistic centrifugal force the electrostatic field exponentially amplifies. As a result the field approaches the Schwinger limit leading to pair creation process in the light cylinder area where the effects of rotation are very efficient. Analysing the parameters of the normal period ($\sim 1$ sec) pulsars we have found that the process is so efficient that the number density of electron-positron pairs exceeds the Goldreich-Julian density by five orders of magnitude. Comment: 5pages, 4 figures |
| Databáze: | OpenAIRE |
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